Github user holdenk commented on a diff in the pull request: https://github.com/apache/spark/pull/12889#discussion_r75385604 --- Diff: mllib/src/main/scala/org/apache/spark/ml/regression/GeneralizedLinearRegression.scala --- @@ -788,6 +788,8 @@ class GeneralizedLinearRegressionModel private[ml] ( @Since("2.0.0") override def write: MLWriter = new GeneralizedLinearRegressionModel.GeneralizedLinearRegressionModelWriter(this) + + override val numFeatures: Int = coefficients.size --- End diff -- numFeatures has always been here its just been the default implementation - but I guess the since wouldn't be too confusing.
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